Linux redundant IP configuration, which has passed the test on the AS4 System

Linux redundant IP configuration, which has been tested on the AS4 system-Linux Enterprise Application-Linux server application information. The following is a detailed description. On the Solaris platform, dual-nic redundancy, we all know that you can use the IPNM (mutipath) mechanism to implement redundant IP addresses (floating IP addresses) for NICs. For Linux, bonding can also be used to configure redundant IP addresses, as described below:

1) vi/etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE = bond0
IPADDR = 192.168.1.235
NETMASK = 255.255.255.0
NETWORK = 192.168.1.0
BROADCAST = 192.168.1.255
GATEWAY = 192.168.1.254
ONBOOT = yes
BOOTPROTO = none
USERCTL = no
TYPE = Ethernet
IPV6INIT = no

2) vi/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE = eth0
USERCTL = no
ONBOOT = yes
MASTER = bond0
SLAVE = yes
BOOTPROTO = none
TYPE = Ethernet
IPV6INIT = no

3) vi/etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE = eth1
USERCTL = no
ONBOOT = yes
MASTER = bond0
SLAVE = yes
BOOTPROTO = none
TYPE = Ethernet
IPV6INIT = no

4] Add at the end of the/etc/modprobe. conf file
Alias bond0 bonding
Options bond0 mode = 1 miimon = 100 updelay = 200 downdelay = 200

5. Restart the OS.
Shutdown-r now
(Service network restart can also be used as mentioned in linux share/doc, but it does not seem to work)

6. view the bonding status:
Cat/proc/net/bonding/bond0

The above test is successful on the red hat AS 4 system.
Determine whether the linux system supports bonding: grep ifenslave/sbin/ifup